Robert strain



(No Model.)

R. STRAIN, Jr.

AUTOMATIG GRAIN OR OIL WEIGHING APPARATUS.

No. 409,808. Patented Au Mal/$9 M UNITED STATES PATENT OFFICE.

ROBERT STRAIN, JR, OF NEWV YORK, N. Y.

AUTOMATIC GRAIN OR OIL WEIGHING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 409,808, dated August 27, 1889.

Application filed May 6, 1889. Serial No. 309,736- (No model.)

To all whom it may concern.-

Be it known that 1, ROBERT STRAIN, J r., of the city, county, and State of New York, have invented certain new and useful Improvements in Automatic Oil or Grain Measuring Devices; and I do hereby declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part thereof.

My invention relates to certain improvements in apparatus for automatically measuring oil, grain, and other similar articles, hereinafter more particularly described; and it consists in certain features hereinafter referred to.

In the accompanying drawings, Figure 1 is an end elevation of the apparatus, one of the buckets being in position to be filled, the other in the position in which it empties itself. Fig. 2 is a side elevation. Fig. 3 is a sectional side elevation of a portion of the apparatus.

a a are the end frames, retained together by the rods 1) l) l) 1). Within these frames are placed two buckets c 0. Each of these buckeis is hung in standards (1 (Z. The lowerends of these standards, two on each side, are connected to the bar 6 at such an angle that when one bucket is in position for being filled its standards are in a vertical position. Each of the buckets is retained in its respective standards (I d by means of studs or pins f f f f, two on each side, which studs pass into slotted openings in the standards and contain friction-rollers. The bar 6 is pivoted into the side frames a a by the pivot-points and screwheads 9 g, in order to give the buckets the proper oscillating motion.

On the lower part of each of the standards dd on one end of the apparatus is pivoted a bell-crank lever h. On each of the horizontal arms 7i h is a scale-beam and weight. On the other side of the pivotal point of each of these bell-crank levers h his a short extension of the horizontal arm h. This arm is connected by a link passing through an eye in the arm down to and also through the end of a bar i. These bars 1'. 01 are pivoted to the inside of the standards (Z (Z 011 the opposite end of the apparatus at the point j,-but passing through slots in the other two standards d d on the front end of the apparatus.

weight on the scale-beam holds the arm h of the bell-crank lever in a downward position, and has an upward pressure on the bottom of the buckets by reason of the pressure of the bar 'i on the knife-edge pivot Z, placed underneath and about the middle of the bucket c. This causes the bucket to be kept elevated with its pivots f f f f in the upper portion of the slots in the standards cl (Z.

The bucket is kept latched at its upper portion by reason of the end of the bolt m, located on the top of the standard d, being locked into the V-shaped recess a of the bar 0, which bar 0 is pivoted at p at the top of the machine. This bolt on is held down by means of a spring q; but when shot it is held up against the tension of the spring (1 by the hook end of a small lever 0' taking into a little recess on the side of the bolt, such hook end being held into the recess by the action of a small mainspring s.

The weight is set on the scale-beam so as to retain the bucket up in a locked position until it becomes full of oil, grain, or other material to be measured. Vhen it does so become full, it just counterbalances the Weight and the bucket commences to sink down. The studs f f f f sink down through the slots in the standards (Z (Z. The knifeedge stud Z presses the bar t' in a downward direction, which causes the vertical arm h of the bell-crank lever to move sidewise and trip the lever 1', which will force this hook end of the lever out of the notch in the bolt m. At once the tension of the spring q will cause the withdrawal of the V-shaped head of the bolt from the V-shaped notch n of the lever 0. The bucket 0 thus becomes free to move in an outward direction and tip itself, rotating on the bar e, together with the standards at d and bell-crank lever 71 h, the line of center of gravity being always outside of the standards (Z at. As the one bucket is tipped the other bucket is drawn up into position again to be filled. The bolt on must, however, be reset against the tension of the spring g. This is accomplished in the following manner: As the bucket reaches its farthest descent aprojecting pin 6 on the side of the bolt m passes over a way a, which carries out the end of the bolt m and permits the hook end of the le ver 7" to rc-enter the recess in the side of the bolt, and thus hold such bolt in a shot position. As the bucket moves up into position the V-shaped end of the bolt 0% will pass into the V-shaped recess 02 of the bar 0, such bar 0 yielding against the pressure of a spring 0, placed at its back, sufficiently for the purpose.

t v are two branch spouts leading from the reservoir of oil or grain 1;". Between these branch spouts and the main spout o is placed a two-way cock to. To the spindle of this two-vs ay cock is connected a lever or, which is in turn connected to a smaller lever cc by means of the chains m" m" or other suit-' able connections. The pivotal point of the lever at is on the shaft e, to which it is journaled. By this means the movement of the frames d d d 01 will also give a reciprocating movement to these levers 00 as, so as to cause the two-way cock to to alternately open or close the branch spouts c o.

The operation of the apparatus is as follows: The buckets c c are alternately filled and emptied. When the bucket c is being filled, the bucket c is emptying itself. The two-way cock w will close the branch spout o, leaving the branch spout o open and a connection back through pipe 12" to the reservoir o, holding the oil or grain or other substance. The scale-beam h on the bellcrank lever It has been set so as to hold up the bucket c, with its contained material, in the frame 01 cl, and so that when the bucket c is completely filled it will turn the scale by causing the studs or pins f f f f to sink down in the slots of the standardsd cl. The knifeedge Z will thus press down the lever 71, which will in turn draw over the arm h of the bellcrank lever, the effect of which will be to trip the lever 1', which will cause the hook end of the latter to move out of the recess of the bolt m. The bolt m will then be drawn downward by the spring g from out of the recess n of the lever 0, which will leave the bucket free to drop downward and all connected with itnamely, the standards 01 I cl, bell-crank lever, and scale h h. This downward movement will also cause the levers 0c 00 to turn, thus revolving the two-way cock w, shutting off the spout 'U, and opening the spout o. Suflicient lap is to be given to the cock to delay the opening of the passage into the spout 1) after the closing of the passage r, so as to permit of the bucket 0 getting into position before the oil or grain commences to pour into it. v

The pressing out of the bolt m,- so that it of oil or grain or other material in turn. The

two-way cock alternately opens and closes the passage to the reservoir in manner as hereinbefore stated. Thus the operation is rendered automatic by very simple and efficient contrivances.

I claim 1. In an automatic oil or grain measuring apparatus, the combination of the buckets c 0', having studs f f f f, with the end frames a a, the slotted standards (1 d, and scale-beams h h, connected to and oscillating with said standards and buckets, substantially as described.

2. In an automatic oil or grain measuring apparatus, the combination of buckets c 0, having studs f f f f, with the end frames a a, the slotted standards (I d, the scale-beams h h, connected to and oscillating with said standards and buckets,- the sliding bolt 172, connected by a spring q and retained against the action of this spring by a lever r, and a notched bar 0, substantially as described.

3. In an automatic oil or grain measuring apparatus, the combination of buckets c 0, having studs f f f f, with the end frames at a, the slotted standards d d, the scale-beams h h, connected to and oscillating with said standards and buckets, the sliding bolt m, connected by a spring q and retained against the action of this spring by a lever r, a notched bar 0, and pivoted levers a; w, substantially as described.

4. In an automatic oil or grain measuring apparatus, the combination of buckets c 0, having studs f f f f, with the end frames a a, the slottedstandards d d, the scale-beams h h, connected to and oscillating with said standards and buckets, pivoted levers a; at, connections x" as", and a two-way cock w, substantially as described.

5. In an automatic oil or grain measuring apparatus, the combination of the slotted standards (I d, with the scale-beams h h pivoted thereto, the lever-bar 2', which bar is pivoted at j to one of the standards d, and a bucket having a knife-edge Z, operating in a.

slot in said bar 6, substantially as described.

ROBERT STRAIN, JR.

Witnesses:

A. M. TODD, J. O. WARD. 

